Suction-deafi snow-fence



H. N. GILMORE.

SUCTION DRAFT SNOW FENCE. APPLICATION FILED JAN. 15. 1919.

1 09,889. Patented July 15, 1919.

THE COLUMBIA PLANOGRAPH c0. wAsHlNG'roN. D c.

posts by 0E ESE.

HIBAM N. GILMORE, OF MILES CITY, MONTANA.

SUCTION-DRAFT SNOW-FENCE.

Specification of Letters, Patent.

PatentedJuly 15;, 1919.

Application filed January 15, 1919. Serial No. 271,309.

To all'whom it may concern:

Be it known that I, HIRAM N. GILMORE, a citizen of the United States of America, residing at Miles City, in the county of Custer and State of Montana, have invented certain new and useful Improvements in Suction- Draft Snow-Fences, of which the following is a specification. I

This invention relates to a method of and means for preventing railway cuts andother depressions from being filled by drifting snow and for keeping buildings, yards and other objects practically free and clear of drifting snow.

The foregoing object is accomplished by the provision of a fence of such a nature as to create a suction draft at each end of the cut or depression or other space to be protected so that the snow will be drawn out and away from the space to be protected instead of drifting therein and filling the same.

The figure shown in the accompanying drawing is a diagrammatic plan view of a suction draft fence disposed in protective relation to a railway cut.

Referring to the drawing, 5 designates a section of railway track and 6 the walls of a cut through which the track runs. Assuming that the prevailing storm winds are from the northwest one line of the fence is extended from a point beyond the west entrance to the cut as at 7 for example, extending thence in a northwesterly directlon until it meets with a line of fence 8 running from a point 8 eyond the east end of the cut to the northwest. The length of the fence, will, of course, the cut to be protected but is to be of sufficient length to form an angle of not less than 20 degrees. Any suitable material may be employed 'n the construction of the fence though I prefer to make it either of galvanized iron or one-inch boards fitted closely together. Preferably the fence will not be less than four feet in height. In the drawing the reference characters 9 designate which the fence is supported. Disposed outwardly of each of the fences are a plurality of short, overlapping wings 7 a and 8 These wings not only lie at an angle with relation to the fence but at such an angle with respect to each other as to provide inlet spaces 10 that are larger than the outlet spaces 11 with the result that the depend upon the length of storm wind sweeping past the fence is caused to set up an ejector action along the sides of the fence and discharging the snow and being itself discharged with increased force across the opposite ends of the cut at such angles as tend to draw the snow away from the cut and to prevent the gradual filling in of the snow from the opposite ends of the cut as has heretofore usually been the case.

In some cases it may be found desirable to dispose the wings substantially parallel with the fences 7 and S and the invention c0n templates such a disposition of the wings.

When the suction draft snow fence is emloyed for the clearing of snow from spaces about buildings, yards and other objects, the fence will be constructed in the manner illustrated: that is, with its angle directed in the direction of the prevailing storm wind and the object to be protected will be disposed in the relation to the fence indicated by the position of the cut 6 in the drawing.

While the structure shown and described is well adapted to serve the purposes for which it is intended it is to be understood that the invention is not limited to the pre cise construction set forth but that it includes within its purview whatever changes come within the spirit of the appended claims.

Having described my invention, what I claim is:

1. The herein described method of protecting an object from drifting snow which consists of employing a two-part fence the parts of which form an angle of not less than twenty degrees directed into the prevailing storm winds and disposed in such relation to the object to be protected as to direct the blast at an angle across the opposite ends of such object.

2. The herein described method of protecting a railway cut from filling with drifting snow which consists of employing a fence extending from the opposite ends of said out to a point of juncture, the two parts of the fence forming an angle of not less than twenty degrees and being directed .into the prevailing storm winds and serving to direct the blast at such an angle across the opposite ends of the cut as to eject snow therefrom.

3. A structure of the character described comprising a two-part fence, the two parts of which are disposed at an angle of not less than twenty degrees with relation to each outlets therefrom, as and for the purposes other and a plurality of wing-like sections set forth. 10 spaced from and disposed outwardly of the In testimony whereofI alfix my signature 7 parts of the fence. in the presence of two witnesses.

4. A structure as recited in. claim 3 where- HIRAM N. GILMORE. in said wing-like sections are disposed at Witnesses: such an angle with respect to the fence as to W. B. LEAVITT, form inlet spaces of greater width than the C. H. LOUD.

Copies of this patent may be obtained for five cents each, by addressing the fCommissioner of Patents,

- Washington, D. 0. 

